{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53679", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53679", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-10-07T15:21:33.926Z", "updatedAt": "2026-10-15T21:41:33.346Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "wifi: mt7601u: fix an integer underflow", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt7601u: fix an integer underflow\n\nFix an integer underflow that leads to a null pointer dereference in\n'mt7601u_rx_skb_from_seg()'. The variable 'dma_len' in the URB packet\ncould be manipulated, which could trigger an integer underflow of\n'seg_len' in 'mt7601u_rx_process_seg()'. This underflow subsequently\ncauses the 'bad_frame' checks in 'mt7601u_rx_skb_from_seg()' to be\nbypassed, eventually leading to a dereference of the pointer 'p', which\nis a null pointer.\n\nEnsure that 'dma_len' is greater than 'min_seg_len'.\n\nFound by a modified version of syzkaller.\n\nKASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\nCPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W O 5.14.0+\n#139\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\nrel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\nRIP: 0010:skb_add_rx_frag+0x143/0x370\nCode: e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44\n89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02\n00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00\nRSP: 0018:ffffc900000cfc90 EFLAGS: 00010202\nRAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000\nRDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8\nRBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010\nR10: ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000\nR13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008\nFS: 0000000000000000(0000) GS:ffff88811a800000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n mt7601u_rx_tasklet+0xc73/0x1270\n ? mt7601u_submit_rx_buf.isra.0+0x510/0x510\n ? tasklet_action_common.isra.0+0x79/0x2f0\n tasklet_action_common.isra.0+0x206/0x2f0\n __do_softirq+0x1b5/0x880\n ? tasklet_unlock+0x30/0x30\n run_ksoftirqd+0x26/0x50\n smpboot_thread_fn+0x34f/0x7d0\n ? smpboot_register_percpu_thread+0x370/0x370\n kthread+0x3a1/0x480\n ? set_kthread_struct+0x120/0x120\n ret_from_fork+0x1f/0x30\nModules linked in: 88XXau(O) 88x2bu(O)\n---[ end trace 57f34f93b4da0f9b ]---\nRIP: 0010:skb_add_rx_frag+0x143/0x370\nCode: e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44\n89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02\n00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00\nRSP: 0018:ffffc900000cfc90 EFLAGS: 00010202\nRAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000\nRDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8\nRBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010\nR10: ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000\nR13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008\nFS: 0000000000000000(0000) GS:ffff88811a800000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "c869f77d6abb5d5f9f2f1a661d5c53862a9cad34", "status": "affected", "versionType": "git", "lessThan": "67e4519afba215199b6dfa39ce5d7ea673ee4138" }, { "version": "c869f77d6abb5d5f9f2f1a661d5c53862a9cad34", "status": "affected", "versionType": "git", "lessThan": "47dc1f425af57b71111d7b01ebd24e04e8d967ef" }, { "version": "c869f77d6abb5d5f9f2f1a661d5c53862a9cad34", "status": "affected", "versionType": "git", "lessThan": "1a1f43059afae5cc9409e0c3bc63bfc09bc8facb" }, { "version": "c869f77d6abb5d5f9f2f1a661d5c53862a9cad34", "status": "affected", "versionType": "git", "lessThan": "61d0163e2be7a439cf6f82e9ad7de563ecf41e7a" }, { "version": "c869f77d6abb5d5f9f2f1a661d5c53862a9cad34", "status": "affected", "versionType": "git", "lessThan": "d0db59e2f718d1e2f1d2a2d8092168fdd2f3add0" }, { "version": "c869f77d6abb5d5f9f2f1a661d5c53862a9cad34", "status": "affected", "versionType": "git", "lessThan": "803f3176c5df3b5582c27ea690f204abb60b19b9" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.2" }, { "version": "5.4.235", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.173", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.99", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }